<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>类声明</title>
</head>

<body>
    <script>
        function Phone(brand, price) {
            this.brand = brand;
            this.price = price;
        }
        //添加方法
        Phone.prototype.call = function () {
            console.log(`我可以用${this.brand}打电话！他花了我${this.price}块钱`);
        };

        //实例化对象
        let Huawei = new Phone("华为", 9999);
        Huawei.call();
        console.log(Huawei);

        //class Phone
        class Shouji {
            //构造方法 名字不能修改
            constructor(brand, price) {
                this.brand = brand;
                this.price = price;
            }
            //方法必须使用该语法，不能使用ES5的对象完整形式
            call() {
                console.log(`我可以用打电话！`);
            }
        }

        let OnePlus = new Shouji("1+", 4998);

        console.log(OnePlus);
        OnePlus.call();
    </script>
</body>

</html>